There is always a need for more effective ways to store energy in order to reduce the human impact on the environment. One step on the way can be the use of flywheels as kinetic energy storage devices. Low frictional losses are essential for a flywheel to be effective. To minimize these losses active magnetic bearings (AMB) can be used to keep the shaft centered instead of the more conventional ball-bearings. AMBs use actuators and a fast control system that needs correct and noise-free measurement data of the shaft position and the current in the actuators to work properly.This thesis explains the process of constructing power electronics and a current measurement system for active magnetic bearings (AMB).

The purpose of this study was to investigate the association between physical activity and perceived stress, energy and musculoskeletal disorders among office-workers and warehouse-workers and also to see if there were any differences depending on work-place and gender. The method that was used to collect data was three different validated questionnaires that measured stress and energy (the Stress-Energy questionnaire), musculoskeletal disorders (intensity and localization of pain, a Pain Drawing questionnaire with a VAS-scale) and physical activity (IPAQ ? the short version). Eighty-eight workers participated in the study. Forty-seven of them were office-workers and forty-one were warehouse-workers.

?Think of the best for the child? that?s a sentence we been hearing before, but the question is, do we really? Does the child get the opportunities to develop to healthy, safe, creative, mobile,concentrated, invention, curious, harmony child? Preschool outdoors is about time. On a preschool outdoors, gets the child opportunities to shape materials and the place they are on, the environment on preschool outdoors is formable and the children fantasy is big. Nothing is decided on a preschool outdoors ahead and nothing is static, here is the place where the child creates together with the nature and landscape. The landscape has a central part in the child?s play and in the child development and there are often no limits.

The transformation among armed forces in Europe is a consequence due to shifted security perspective and the growth of international security actors, such as NATO and the EU. Sweden has played an active role in EU to ensure its influence in forming the security policy for the organisation. Some studies mean it´s because of Sweden?s interest in strengthen EUs roll as a security actor they transformed their own armed forces to be able to take part in international operations. This transformation led to what can be called ?the Swedish defence dismantle? and some studies mean that it has led to the point where Sweden completely lacks the ability to defence themselves.The question is if the ambition to become an active member in these security organisations can explain all the decisions made throughout the Swedish defence-transformation, or if some decisions were made due to other factors?By studying the decision process leading up to the decision to locate the flight education to Malmen in Linköping this study seeks to answer why the decision was made.

The aim of this study is to understand how the library environment affects the experiences and feelings of public library users. In order to concretise this, the study sets out from the public library in Bollebygd. We wanted to find out how the library users experience the library environment. Does the library environment affect the meeting between library users? How does the environment affect their moving patterns inside the library? Which environmental factors influence the users' experiences? Our questions were: how do users experience the library environment - as a mediating space for information and culture? - as a social room and meeting place? The material used to attain the purpose of the study consists of qualitative observations and interviews, and literature studies.

Today there is a research project undertaken by the Swedish University of Agricultural Sciences along with Wången (a highschool specialized in trotter training), which focuses on trotting horse training, performance and health. The project investigates how exercise intensity and feeding strategies affect the development of growing horses. The project includes two groups of horses where all 16 horses are fed in the same way. One group of eight individuals are trained 100% compared to conventional training and the other group are trained 20% less than the other group. All horses are trained twice a week and are out at pasture beyond that.

The predominant forestry harvesting method is based on the harvester-forwarder method, theharvester folds, branches and cuts trees, and sorts the logs into piles, while a forwarder transportsthe logs to a landing area.This master thesis work is about realization of a dynamic forwarder simulation model, and itspurpose is to provide an integrated forwarder simulation model in MATLAB/SimMechanicswhere the forwarder is based on a concept using pendulum arms to connect wheels and chassis.Active suspension control is developed and implemented into the simulation model, and finallycompared in simulation with passive suspension.In a first step, an integrated forwarder simulation model is developed, containing a simplifiedforwarder model, a tire-to-ground interaction model and a test track model. The simplifiedforwarder model is based a rigid multi-body system with a spring-damper suspension of thependulum arms. The tire-to-ground interaction model calculates the reaction forces, friction fromthe ground and applies the propulsion force. The test track model is a simplified version of thereal test track in Skogforsk. The propulsion wheel torque control is used to regulate theforwarder speed.

Fortum has in a pilot project installed metering equipment with wireless communication in secondary substations in Stockholm. So far, the collected data are used only in specific projects.This master thesis was carried out at Fortum Distribution AB in Stockholm during 2013. The purpose of this study is to simplify and enhance the use of data in for example network planning process, by giving suggestions on how data can be managed and giving examples of analyzes that collected data can be used for.The electricity meter which Fortum has installed is a EDMI-Mk10A which is set to measure max/average/min values with a one hour time resolution of the following parameters: voltage (per phase), current (per phase) andactive power and active and reactive energy.In order to analyze the collected data an analysis tool is required. During this thesis two customized tools in Microsoft Excel have been developed, one for sorting data and one for analyzing.One aim of the thesis is to show examples of what collected measurement data can be used for. This work shows an example of analysis of active power, power factor, voltage, occurrence of interrupts and the relationship between outdoor temperature and power.This master thesis has among others resulted in the following advice: Expand the number of secondary substations with measuring equipment.

Young councillors are currently under-represented in Sweden's municipalities. Young councillors are also stepping down in greater numbers than older members. This paper explores the reasons why young councillors choose to resign from their mission, so to identify possible remedies to the problematic trend of underrepresentation of younger people in local authorities in Sweden.This qualitative essay intends, through interviewing politically-active young people who has left their assignment, to study the reasons for resignations from elected posts. To see what could be the reason I have looked at previous studies and theories about opting out but also tried to remain open to identifying new and emerging trends previously undetected in existing surveys.The results showed that the political assignment proved to be too time-consuming, with young people choosing to spend their time on career and leisure. Those who resign from political life often express criticism towards the Municipal Council; they consider it tedious and many complain of having little influence.

The children's ways of showing interest in writing and reading in pre-school have always fascinated me. The joy and pride they show when they start writing their own doodles and then eventually go on to write real letters and words, is a joy so see.The origin of this essay is based on Dante 3.5 years old. He wants me to spell my name so he can write to me. When I mention the second letter, Dante happily says "E, that's what my name starts with! From the other direction" I am amazed by his thoughts, and my enthusiasm for his knowledge knows no bounds. In the same moment I become aware of Alma, who quietly has seen my reaction to Dante's skills.

Motivation is a key factor in sustaining a healthy and active lifestyle, and technology has afforded us new methods for attaining information concerning exercise and health. This paper aims to examine how social media can motivate individuals to obtain and maintain an active and healthy lifestyle, as well as identify which particular social media channels are preferred for this purpose. Both quantitative and qualitative methods were used as data collection in this research. The results of this report show that images and text shared on social media, as well as the communication therein, can function as motivation for individuals to commence and maintain a regular physical activity and health regimen. Additionally, an individual?s sharing of their own training and health routine is enough to motivate the person in question to sustain their training and health procedure.

The aim of the study was to map the extent of Fe, Cu, Pb, As, Zn and S contamination in the area surrounding the Nasa silver mine. The mine operated between 1635 and 1810 with some prospecting performed in 1889, and has become infamous for the gruesome ways that the indigenous people were treated during the early years of operation. This study tested three hypotheses through a geochemical survey: 1) sulfide oxidation is still active in the abandoned mine, 2) the soil downslope of the mine is contaminated by mine drainage, and 3) the stream downslope of the mine is affected in the same way. All three hypotheses were valid, as the results showed that still, >200 years after mining operations ceased, signs of the historical mining are clearly visible in the surrounding environment. Acidic conditions were discovered in surface waters close to the waste rock piles, which indicates active sulfide oxidation.

This thesis examines the democracy theories that can be found in the internet websites of Region Skåne and Stockholm county council. Within the framework of deliberative democracy, participatory democracy and electoral democracy, the author tries to distinguish democratic aspects by empirically studying these websites and their communicative effect on the internet users.This research shows that Region Skåne is slightly better in implementing democratic aspects at their home page, which is probably due to an active work with these issues carried out by the politicians and the report on the democratic development from 2004. However, a great deal of work regarding democracy and the possibility of civic participation in the decision- making process is still to be done.The problems and challenges in using internet as a democratic tool shows that citizens run a risk of being neglected, due to their uneven participation in using internet in daily life. The conclusion of this thesis is that the politicians have to make an active choice in deciding to what extent the internet is allowed to be used when it comes to developing democracy. This work has to be done in cooperation with political scientists and IT experts, in order to assure a correct democratic model..

Abstract The development towards an international accounting standard implies that Swedish groups of companies that are not quoted on the stock exchange can use a parent company perspective or an entity perspective while making their group accounting. The purpose of this study is to describe and explain the motives behind the groups of companies choice of perspective and to show how these motives agrees with the effect it has on the profit and loss account and on the balance sheet.The study includes four fictitious groups of companies based on real groups of companies. Every group of companies includes 1-3 subsidiary companies, where at least one is owned by the parent company with 51-70 %. Some assumptions were made before the consolidation.Relevant key numbers have been calculated according to both perspectives and then compared. A total of three semi structured interviews have been carried out two with representatives for the real groups of companies and one with a chartered accountant.

Our project is meant to produce a generic medicine for stomach ulcers and heartburns. As Astra Zeneca's patent on Nexium expires in the United states in 2012, our clients wants to take advantage of the market and with using the same active substance as Nexium contains we want to produce a new generic drug, that we named Bluezec..